Cited by 8Retinal Development and DisordersRetinal Diseases and TreatmentsGenetic and Kidney Cyst Diseases

The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.

A novel homozygous frameshift variant in the cellular retinaldehyde-binding protein 1 ( RLBP1 ) gene causes retinitis punctata albescens

Torres-Costa, Sónia, Ferreira, Carla Sofia, Grangeia, Ana, Santos-Silva, Renato, Brandão, Elisete, Estrela-Silva, Sérgio, Falcão-Reis, Fernando·2021·European Journal of Ophthalmology

Abstract

Background: Retinitis punctata albescens is a form of retinitis pigmentosa characterized by white fleck-like deposits in the fundus, in most cases caused by pathogenic variants in RLBP1 gene. The purpose of this work is to report the phenotypic and genotypic data of a patient with retinitis punctata albescens carrying a deletion in the RLBP1 gene. Results: An 8-year-old Caucasian female has been complaining of nyctalopia for the last 2 years. No other ocular symptoms were present. No relevant past medical or familiar history was described. At clinical examination, the patient’s best-corrected visual acuity was 20/20 in both eyes. Anterior segment evaluation and intraocular pressure were normal in both eyes. At fundoscopy, multiple punctate whitish-yellow fleck-like lesions were observed in the proximity of temporal superior and inferior vascular arcades. Scotopic electroretinogram demonstrated severely reduced rod response, without improvement or recovery of rod system function after prolonged dark adaptation. Blood DNA samples of this patient and from her parents were screened for causal variants in RLBP1, RDH5, and PRPH2. Conclusion: A probable pathogenic frameshift variant was identified in homozygosity in the RLBP1 gene with an autosomal recessive transmission as another cause of retinitis punctata albescens. This DNA variant will aid ongoing functional studies and add to our understanding of the molecular pathology about RLBP1-associated retinopathies.

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Crossref · 10.1177/1120672120919064

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  1. Morimura H, 1999, Invest Ophthalmol Vis Sci, 40, 1000

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Metadata

Authors
Torres-Costa, S., Ferreira, C. S., Grangeia, A., Santos-Silva, R., Brandão, E., Estrela-Silva, S., & Falcão-Reis, F.
Affiliations
  • Hospital de São João (PT)
  • Department of Ophthalmology, São João Hospital University Center, Porto, Portugal
Corresponding author
Torres-Costa, Sónia
Venue
European Journal of Ophthalmology
Published
2020-04-28
Volume
31
Issue
3
Pages
NP74-NP80
ISSN
  • 1120-6721 (ISSN-L)
  • 1724-6016
OpenAlex
W3017495113
Cited by
8
References
11
Citations by year
2025: 1 · 2024: 2 · 2022: 3 · 2021: 2
FWCI
0.41
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Ophthalmology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Ophthalmology › Retinal Development and Disorders
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Kidney Cyst Diseases
Keywords
retinitis punctata albescens, RLBP1, frameshift mutation, homozygous deletion, retinitis pigmentosa, autosomal recessive inheritance, night blindness, rod photoreceptor dysfunction, scotopic electroretinogram, RDH5, PRPH2
MeSH terms
Carrier Proteins, Child, Electroretinography, Female, Humans, Mutation, Retinal Diseases, Retinaldehyde

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CoChat. (2026). Citation check: A novel homozygous frameshift variant in the cellular retinaldehyde-binding protein 1 ( RLBP1 ) gene causes retinitis punctata albescens. https://app.cochat.ai/papers/10.1177/1120672120919064
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Torres-Costa, S., Ferreira, C. S., Grangeia, A., Santos-Silva, R., Brandão, E., Estrela-Silva, S., & Falcão-Reis, F. (2021). A novel homozygous frameshift variant in the cellular retinaldehyde-binding protein 1 ( RLBP1 ) gene causes retinitis punctata albescens. European Journal of Ophthalmology. https://doi.org/10.1177/1120672120919064